Kreg Owners' Community

Hi to all:

This weekend I will be tackling a workbench project, which is my first project. I have a couple of questions concerning the project.

1) Because my bench will be living in my garage and I live up in canada, where it's cold for 6 months of the year, should I be using plywood instead of MDF because of the cold and moister?

2) Should I be finishing/protecting my top to protect against the cold and moister. If so, then what should I be using?



Views: 36984

Reply to This

Replies to This Discussion

Ben Socratous said:
MDF is easier to work, and a whole lot cheaper. Also with a decent coat of paint/lacquer it will handle moisture well (I left my bench out in the rain for a week while the shed got re-wired and was fine). The downside is that MDF is not as stiff as the plywood of the same thickness, ergo will need more support than the plywood would. Double thickness 18mm MDF will aliviate that issue, I had a sheet of 25mm sitting in the shed for 2 years so I decided to use that!

*yes I work in metric measurements... deal with it, lol

Around here (Austin, Texas) birch plywood can be cheaper or only moderately more expensive than MDF for the same thickness. For instance at the local BB store 18mm MDF (it is called 3/4 but it is 18mm) is about $29.99 and 18mm birch ply is $36.23. But if you go to one of the local lumber dealers that sale to the cabinet makers you can get a higher quality birch ply for $28.00.

What you have to be careful about when using Ply is that if you finish it you must finish both sides of it or it may/will warp. MDF is supposed to handle not being coated on one side a little better.
Well that sucks! Yet another thing we get charged way too much for here in Australia :(

I can get 18mm MDF at my local hardware store for around $30/sheet. The same size in plywood is $64/sheet! And to make it worse, that is structual ply, ie a pretty crappy finish on both sides. If I was to buy an A-grade finished sheet of ply from a timber supplier, I'd have to fork out around $120/sheet!!!

Reply to Discussion


Need Help?

For Technical Support, please call 800-447-8638 or send a message. Reps are available Monday through Friday from 8am to 5pm CST. 


  • Add Videos
  • View All


Pantry slides for heavy application

  Recently purchased two 96" tall pantry cabinets that are 23" deep that only came with two adjustable shelves and two fixed, (one at about 55" and one at the very bottom).  Shelf holes in the walls are drilled 2" O.C.  Like most store-bought…Continue

Tags: drawer, slides, pantry, pull-out, 75-Lb

Started by Paul Coon in General Woodworking Aug 11.

Miter Saw Recommendation 1 Reply

I’m looking to upgrade my miter saw. I’m willing to invest a good amount of money to get one with the precision pocket hole joinery requires. Would anyone like to offer a recommended model?

Started by Joe Racz in Beginners' Zone. Last reply by Scott Davison Oct 6.

Product Reviews

New Kreg 720Pro

I saw the video Kreg put out for this new jig and had high hopes for it.

I purchased one today and am very disappointed with it.

First the docking station is extremely cheap. The plastic is pathetic. A Lego has more…


Posted by Duke Leon on February 15, 2021 at 9:00pm

Not Pleased With Pocket Hole Construction

Several months ago, I purchased the Kreg K4MS so that I could build the Lego Table as outlined on the companion "buildsomething" web site which exclusively uses pocket hole construction.  I have considerable experience with conventional…


Posted by Robert Ringel on September 17, 2020 at 1:48pm — 8 Comments

© 2021   Created by KregRep.   Powered by

Badges  |  Report an Issue  |  Privacy Policy  |  Terms of Service